I used to carry around three pens with me at all times; blue, black and red. You never know when you need a pen. The three musketeers, as I named them, have since passed on. Now I am always, always, accompanied by one of my band of merry pens.

I also like mechanical pencils (they are the same thing as pacers right? Pacers is what I know them as) instead of ordinary pencils but I have at least 100 of each